Peter patterson



(No Model.)

, P;PATTERSON. APPARATUS FOR WELDING TUBING. v No. 444,569. Patented Jan. 13, 1891.

THE scams FEIERS co, mum-umu, WASHINGTON, n. c.

PETER PATTERSON, OF MOKEESPORT, PENNSYLVANIA, ASSIGNOR TO THE NATIONAL TUBE WORKS COMPANY, OF SAME PLACE.

APPARATUS FOR WELDING TUBING.

SPECIFICATION forming part of Letters Patent No. 444,569 dated January 13, 1891.

Application filed July 5, 1890. Serial No. 357,805. (No model.)

To aZZ whom it may concern: more fully, referring to the accompanying Be it known that I, PETER PATTERSON, a drawings, in which resident of McKeesport, in the county of Al- Figures 1 and 2 are side views of a weldlegheny and State of Pennsylvania, have ining-bench, showing two dillerent forms of the 55 5 vented a new and useful Improvement in apparatus-embodying my invention.

Apparatus for lVelding Tubing; and I do Like letters of referenceindicate like parts hereby declare the following to be a full, clear, in each. and exact description thereof. The draw-bench A is of the ordinary or any Myinvention relates to apparatus for drawapproved construction, having at its forward 60 ing and Welding tubing, its object being to end, in the apparatus illustrated, the bellimprove the apparatus heretofore employed holder a, in which the welding-bell b is held, for this purpose, in which the plate or skelp though the apparatus is well adapted to the is drawn through a die or bell in order to bend bending of plates into skelp form, in which or bend and weld the same, such apparatus case a skelping-die will be located at the for- 65 being well illustrated in Letters Patent No. ward end of the draw-bench. The drawing- 341,162, granted to me the 4th day of May, 1886. chain c is mounted on the sprocket or pulley C, The usual form of apparatus for bending or and travels longitudinally in the ordinary bendingand welding this tubing has consisted guideway cl in the body portion of the drawin a draw-bench having the bending-die or bench in position to be engaged, as herein- 7o bell-holder mounted at the forward end, a after described, by the drawing-tag.

traveling chain mounted in suitable sprockets The furnace is of any approved construcand pulleys and traveling longitudinallywithtion, while the plate E, which is to be either in the bench, and a buggy running on tracks bent into skelp form or into tubing, is of the on the draw-bench and having tongs or like proper width, weight, and size corresponding 75 devices which engage the plate or blank, or to the bending or welding die, and has secured with the drawing rod or tag secured thereto, thereto by welding or otherwise the drawingand which buggy was provided with a hook tag 6. The drawing-tag is provided with a which engaged with the chain, so drawing the hook formed integral therewith, the hook g blank through the bending or welding die. being bent from the body of the tag at the rear 80 The principal objection found in connection end thereof, so that the bending or welding with this way of making tubing was that it bell may be passed over the tag and secured required a boy to move the buggy along the within the bell-holder and thehook of the tag draw-bench, engaging it with and disengaging then engaged with the drawing-chain. For it from the chain and bringing it back to the this purpose it is evident that the drawing- 85 forward end thereof, this being rather difftag must be of such shape as will permit the cult work, requiring considerable skill. welding-bell to be passed over the hook por- The object of my invention is to overcome tion thereof, and where thedrawing-tag is the necessity of this buggy by providing the provided with a handle for operatiugthe same, drawing rod or tag with a hook integral with as shown at 7.7, it is evident that the handle 0 0 and depending from the tag, which hook can must be of such size and shape as to permitengage with the drawing-chain and so act to the bending or welding bell to be passed over draw the blank through the bending or weldthe handle formed on the tag. In Fig.1 this ing die and hold it in engagement with the handle is shown formed of a metal loop sechain until the skelp or blank is drawn encured to the body of the tag, and in such case 5 tirely through the die, when the hook can be the opening through the bell must be of suffieasily disengaged from the chain. cient size to pass overthe body of the tag and I The particular improvements embodied in handle, such tag being employed with the my invention will be hereinafter more spelarger sizes of bells. cifically described and claimed. In Fig. 2 the handle it is formed by bending too To enable others skilled in the art to make the body of the drawing-tag, so raising from and use myinvention, I will describe the same the body itself a portion which can be grasped by the operator in handlingtho tag and which will raise his hand snfiieiently above the bod} ot the tag to prevent contact between the hand and the drawing-chain. Such form of tag can be employed with smaller sizes of welding; bells.

'lhe above-described forms of tags are intended to illustrate forms in which my illVGil' tion may be embodied, though any suitable form of tag having the essential features of a hookintegral with and extending down from the tag itself is included within the invention.

In the use of my invention the drawingtags are secured to the plates or skelps, as above stated, and the plates inserted within the furnace, and when theplate is brought to the proper heat the tag is connected to the drawing-chain bythe hook g, extendingdown from the same, the hook of the tag thus forming the connection between the plate to be bent or bent and welded and the drawingchain. After the plate is inserted within the furnace the operator takes the welding'bell and passes the same around the hooked end of the drawing-tag and over the body of the same and into position to be caught by the bell-holder a. When the plate is brought to the proper heat, he then simply forces thehooked end of the drawing-tag into engagement with the drawing-chain, so that the chain will draw the plate or skelp through the bending or welding die. \Vhen the plate has been drawn entirely through the die and the tag reaches the rear end of the draw-bench, it can be quickly released from the drawingchain and the tngse 'iarated from the tube and skel p.

The drawing-tags having the hooks formed integral therewith can, after the operation above described, be secured to other plates and used again in the manner above described.

It is thus evident that by myinvention I do away entirely with the necessity of a separate boy or operator to move the bugg Y and so reduce the amount of labor necessary in the operation of bending and welding tubing and greatly simplify the operation, bringing all the work under the control of the welder or main operator at the f urnaee.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is

1. A drawing-tag secured to a tube skelp or blank and havii'ig a hook formed integral therewith and depending therefrom and adapted to engage with the drawing-chain, substantially as and for the purposes set forth.

A drawing-tag secured to a tube skelp or blank and having a hook formed integral therewith and depending therefrom and having the body of the tag bent to form a handle therefor, substantially as and for the purposes set forth.

In testimony whereof I, the said PETER PAT- TERSON, have hereunto set my hand.

PETER PA'F'IERSON.

Witnesses:

CHARLES PATTERSON, II. R. MAZURIE. 

